Datasheet

Configuring Voice
Managing Caller ID Services
98 Cisco SRP500 Series Services Ready Platforms Administration Guide (SRP520 Models)
6
There are three types of Caller IDs:
• On Hook Caller ID Associated with Ringing—Type of Caller ID is used for
incoming calls when the attached phone is on hook. See the following figure
(a) – (c). All CID methods can be applied for this type of CID.
• On Hook Caller ID Not Associated with Ringing—Used to send VMWI
signal to the phone to turn the message waiting light on and off (see Figure
1 (d) and (e). This is available only for FSK-based CID methods: (Bellcore,
ETSI FSK, and ETSI FSK With PR).
• Off Hook Caller ID—Used to deliver caller-id on incoming calls when the
attached phone is off hook (see the following figure). This can be call
waiting caller ID (CIDCW) or to notify the user that the far end party identity
has changed or been updated (such as due to a call transfer). This is
available only for FSK-based CID methods: (Bellcore, ETSI FSK, and ETSI
FSK With PR).
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a) Bellcore/ETSI Onhook Post-Ring FSK
First
Ring
FSK
b) ETSI Onhook Post-Ring DTMF
First
Ring
DTMF
c) ETSI Onhook Pre-Ring FSK/DTMF
Polarity
Reversal
CAS
(DTAS)
First
Ring
DTMF/
FSK
Polarity
Reversal
CAS
(DTAS)
FSK
CAS
(DTAS)
Wait for
ACK
FSK
d) Bellcore Onhook FSK w/o Ring
OSI
FSK
e) ETSI Onhook FSK w/o Ring
f) Bellcore/ETSI Offhook FSK